package com.lt.lease.common.utils;

import com.lt.lease.common.exception.LeaseException;
import com.lt.lease.common.result.ResultCodeEnum;
import io.jsonwebtoken.*;
import io.jsonwebtoken.security.Keys;

import javax.crypto.SecretKey;
import java.util.Date;

/**
 * @author 06 2024/6/6
 */
public class JwtUtil {
    private static SecretKey secretKey = Keys.hmacShaKeyFor("Hsjdyl72jsnhHksad982nsuHsj8WWWsuJs8".getBytes());


    public static String createToken(Long userId,String username){
        String jwt = Jwts.builder()
                .setExpiration(new Date(System.currentTimeMillis() + 36000000000L))
                .setSubject("LOGIN_USER")
                .claim("userId", userId)
                .claim("username", username)
                .signWith(secretKey, SignatureAlgorithm.HS256)
                .compact();
        return jwt;
    }

    public static Claims parseToken(String token){

        if(token==null){
            throw new LeaseException(ResultCodeEnum.ADMIN_LOGIN_AUTH);
        }
        try {
            Jws<Claims> claimsJws = Jwts.parserBuilder()
                    .setSigningKey(secretKey)
                    .build()
                    .parseClaimsJws(token);
            return claimsJws.getBody();
        }catch (ExpiredJwtException e){
            throw new LeaseException(ResultCodeEnum.TOKEN_EXPIRED);
        }catch (JwtException e){
            throw new LeaseException(ResultCodeEnum.TOKEN_INVALID);
        }

    }



}
